title: Silicon photonics plasma-modulators with advanced transmission line design.
abstract: We have investigated two novel concepts for the design of transmission lines in travelling wave Mach-Zehnder interferometer based Silicon Photonics depletion modulators overcoming the analog bandwidth limitations arising from cross-talk between signal lines in push-pull modulators and reducing the linear losses of the transmission lines. We experimentally validate the concepts and demonstrate an E/O -3 dBe bandwidth of 16 GHz with a 4V drive voltage (in dual drive configuration) and 8.8 dB on-chip insertion losses. Significant bandwidth improvements result from suppression of cross-talk. An additional bandwidth enhancement of ~11% results from a reduction of resistive transmission line losses. Frequency dependent loss models for loaded transmission lines and E/O bandwidth modeling are fully verified.
authors.forename: Florian
authors.initials: F
authors.lastname: Merget
authors.forename: Saeed Sharif
authors.initials: SS
authors.lastname: Azadeh
authors.forename: Juliana
authors.initials: J
authors.lastname: Mueller
authors.forename: Bin
authors.initials: B
authors.lastname: Shen
authors.forename: Maziar P
authors.initials: MP
authors.lastname: Nezhad
authors.forename: Johannes
authors.initials: J
authors.lastname: Hauck
authors.forename: Jeremy
authors.initials: J
authors.lastname: Witzens